Audio signal recognition method and electronic device supporting the same

Abstract

An electronic device is provided. The electronic device includes a signal acquisition module configured to transmit a signal toward an object and receive an echo signal obtained by transformation of the signal through a collision with one surface of the object; a feature extraction module configured to extract a signal descriptor from the echo signal and analyze the extracted signal descriptor; a conversion module configured to convert the signal descriptor into an audio descriptor; and a synthesis module configured to convert the audio descriptor into an audio signal in a determined frequency band and output the converted audio signal.

What is claimed is: 
     
         1 . An electronic device, comprising;
 a signal acquisition module configured to transmit a signal toward an object and receive an echo signal obtained by transformation of the signal through a collision with one surface of the object;   a feature extraction module configured to extract a signal descriptor from the echo signal and analyze the extracted signal descriptor;   a conversion module configured to convert the signal descriptor into an audio descriptor; and   a synthesis module configured to convert the audio descriptor into an audio signal in a determined frequency band and output the converted audio signal.   
     
     
         2 . The electronic device of  claim 1 , further comprising:
 a compensation module configured to detect information on motion of the object and the electronic device, generate a compensation signal based on the detected information, and transfer the generated compensation signal to the conversion module.   
     
     
         3 . The electronic device of  claim 2 , wherein the conversion module is further configured to convert the signal descriptor into the audio descriptor based on the signal descriptor and the compensation signal. 
     
     
         4 . The electronic device of  claim 2 , wherein the signal acquisition module comprises an extended signal acquisition module configured to acquire audio information and video information of the object. 
     
     
         5 . The electronic device of  claim 4 , further comprising:
 an adaptation module configured to receive the audio information and the video information of the object from the extended signal acquisition module, determine audio data of the object among pre-stored audio data based on the received audio information and video information, and adjust at least one of a frequency, pitch, and timbre of the received audio information based on the determined audio data of the object.   
     
     
         6 . The electronic device of  claim 5 , wherein the conversion module is further configured to convert the signal descriptor into the audio descriptor based on the signal descriptor, the compensation signal, and adjusted at least one of the frequency, the pitch, and the timbre of the received audio information of the object received from the adaptation module. 
     
     
         7 . The electronic device of  claim 5 , wherein the adaptation module is further configured to receive the video information of the object from the extended signal acquisition module and determine a fundamental frequency band of the object based on the received video information. 
     
     
         8 . The electronic device of  claim 1 , wherein the synthesis module is further configured to output the audio signal to which pre-stored data is added when the amount of audio data corresponding to the audio signal is less than or equal to that of a predetermined threshold audio data. 
     
     
         9 . The electronic device of  claim 4 , wherein the object is determined as the electronic device detects a selection input event for the video information received from the extended signal acquisition module. 
     
     
         10 . The electronic device of  claim 1 , wherein the object is an acoustic source configured to generate audio without using an electric signal, the signal is an ultrasonic signal, and the frequency band ranges from 20 Hz to 20,000 Hz. 
     
     
         11 . An audio recognition method for an electronic device, comprising:
 transmitting a signal toward an object;   receiving an echo signal obtained by transformation of the signal through a collision with one surface of the object;   extracting a signal descriptor from the echo signal and analyzing the extracted signal descriptor;   converting the signal descriptor into an audio descriptor; and   converting the audio descriptor into an audio signal in a determined frequency band and outputting the converted audio signal.   
     
     
         12 . The audio recognition method of  claim 11 , further comprising:
 detecting information on motion of the object and the electronic device, generating a compensation signal based on the detected information, and transferring the generated compensation signal to the conversion module.   
     
     
         13 . The audio recognition method of  claim 12 , wherein converting the signal descriptor into the audio descriptor comprises:
 converting the signal descriptor into the audio descriptor based on the signal descriptor and the compensation signal.   
     
     
         14 . The audio recognition method of  claim 12 , further comprising:
 acquiring audio information and video information of the object.   
     
     
         15 . The audio recognition method of  claim 14 , further comprising:
 receiving the acquired audio information and video information of the object, determining audio data of the object among pre-stored audio data based on the received audio information and video information, and adjusting at least one of a frequency, pitch, and timbre of the received audio information based on the determined audio data of the object.   
     
     
         16 . The audio recognition method of  claim 15 , wherein the converting of the signal descriptor into the audio descriptor comprises:
 converting the signal descriptor into the audio descriptor based on the signal descriptor, the compensation signal, and the adjusted at least one of the frequency, the pitch, and the timbre of the received audio information of the object.   
     
     
         17 . The audio recognition method of  claim 14 , further comprising:
 receiving the acquired video information of the object and determining a fundamental frequency band of the object based on the received video information.   
     
     
         18 . The audio recognition method of  claim 11 , wherein outputting the audio signal comprises:
 outputting the converted audio signal to which pre-stored data is added when the amount of audio data corresponding to the audio signal is less than or equal to that of a predetermined threshold audio data.   
     
     
         19 . The audio recognition method of  claim 14 , wherein the object is determined as the electronic device detects a selection input event for the video information received from the extended signal acquisition module. 
     
     
         20 . The audio recognition method of  claim 11 , wherein the object is an acoustic source configured to generate audio without using an electric signal, the signal is an ultrasonic signal, and the frequency band ranges from 20 Hz to 20,000 Hz.